basic for loop + examples -> era3

examples/list.ang

@@ -1,51 +1,47 @@
 
 # Empty list
-write([])
+println([])
 
 # List with items
-write([3, 1, 4, 1, 5, 9, 2, 6, 5])
+println([3, 1, 4, 1, 5, 9, 2, 6, 5])
 
 # List with items of different types
-write(["", "私はかっこいいです。", true, nil, nil, 1, 2])
+println(["", "私はかっこいいです。", true, nil, nil, 1, 2])
 
 a := []
 
-a = a.append(1)
-a = a.append(2)
+a = a + [1]
+a = a + [2]
 
-write(a)
+println(a)
 
 
 list := []
 
-n := 0
 x := 0
-while n < 100 {
+for n in 0..100 {
     x = x + 2*n + 1
 
-    list = list.append(x)
-    n = n + 1
+    list = list + [x]
 }
 
-write(list)
-write(list.map(func(a) {
+println(list)
+println(list.map(func(a) {
     return a - 1
 }))
-write(list.length())
-write(list.at(69))
+println(list.length())
+println(list.at(69))
 
 other := []
 
-a := 1
-while a <= 10 {
+for a in 0..=10 {
     other = other.append(a)
-    a = a + 1
 }
 
 sum := other.reduce(func(tot, x) {
     return tot + x
 }, 0)
 
-write(sum)
+println(sum)
 
 assert(sum == a*(a-1)/2)